JPH09848A - Air cleaner - Google Patents

Abstract

PURPOSE: To form an air cleaner into a compact type by forming a cylindrical fan chamber above a filter chamber for storing a filter formed into an annular shape by bending sheet zigzag, and forming up a constitution of air intake vents for sucking air from the outer face of the filter and cleaning the air. CONSTITUTION: A cylindrical fan chamber 5 is formed above a filter chamber 3 for storing a filter 2 formed by bending sheet zigzag, and an axial flow fan 7 is installed on a motor 9 supported by a support 8 in the fan chamber 5 to constitute a fan motor 10. A decorative grille 11 forming a plurality of air intake vents 11a on the periphery of the constitution is formed in a manner of covering the filter chamber 3 and an electrical unit chamber 1, and a constitution of sucking air from the outer face of the filter 2 toward the inner face by the fan motor 10 and cleaning the air is formed. The filter area of the filter 2 is enlarged by the arrangement, and an air cleaner can be formed into a compact type.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner for cleaning air using a filter.

[0002]

2. Description of the Related Art In recent years, air purifiers for purifying indoor polluted air using filters in order to improve the indoor environment have become widespread. It is rising.

A conventional air cleaner of this type will be described with reference to FIG. As shown in the figure, the suction port 1 on the front
The louver 102 formed with 01 is provided, and the discharge port 1 is provided on the upper surface.
A fan motor 10 for sucking air from a suction port 101 into a main body 104 in which 03 is formed and discharging air to a discharge port 103
5, a flat plate-shaped filter 106 is provided on the windward side of the fan motor 105, and the air polluted by operating the fan motor 105 is sucked in through the suction port 101,
Contaminated air is purified through the filter 106 and the discharge port 1
It was released from 03.

[0004]

In the structure of such a conventional air cleaner, since the filter 106 has a flat plate shape, the surface area of the filter 106 is made large in order to obtain a predetermined filtration area. Therefore, there is a problem that the main body 104 for accommodating the filter 106 becomes large in size.

Further, since the filter 106 corresponding to the suction port of the fan motor 105 is flat and has a large area,
There is a problem that the air is difficult to be sucked in on average and the clogging occurs intensively to deteriorate the purification performance.

Further, since the noise generated from the fan motor 105 is radiated as it is from the discharge port 103, there is a problem that the noise is large.

A first object of the present invention is to provide an air purifier which can solve the above problems and can be formed in a small size.

A second object is to improve purification performance. The third purpose is to reduce the noise generated from the fan motor.

[0009]

In order to achieve the above-mentioned first object, the air purifier of the present invention has a first means for accommodating a filter formed by bending a strip into a plurality of mountain shapes and forming an annular shape. A filter chamber and a cylindrical fan chamber provided in an upper portion of the filter chamber and having a fan motor provided therein, wherein the fan motor sucks and purifies air from the outer surface to the inner surface of the filter; To do.

In order to achieve the second object, the second means is a fan chamber having an inner diameter larger than the inner top of the filter, and the inner top of the filter is the inner diameter.
A guide wall formed to incline from the inner diameter toward the inner diameter of the fan chamber, and an axial fan in which a plurality of blades having a shape substantially along the inclined surface of the guide wall are provided on a blade boss having a large diameter on the base side. The fan motor with this axial fan attached is provided.

In order to achieve the third object, the third means has a structure in which a sound absorbing material is provided on the inner wall of the fan chamber.

[0012]

According to the present invention, the surface of the filter becomes a plurality of mountain-shaped surfaces by the constitution of the above-mentioned first means, and the surface area is formed large due to the mountain-shaped irregularities, and the filter has a smaller diameter and a predetermined filtration than the plate-shaped filter. Since the area can be formed, the overall shape can be made small.

Further, by the constitution of the second means, the power of the fan motor is increased and the performance is improved, so that the purification performance for inhaling from the surface of the filter to purify the air is improved.

Further, with the structure of the third means, the noise generated from the fan motor is absorbed by the sound absorbing material provided in the fan chamber, and the noise is reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in the drawing, a storage chamber 1 is provided at the bottom for accommodating electrical components (not shown) such as a circuit board, and a band plate is bent on the electrical component chamber 1 into a plurality of chevron shapes to form an annular filter. Two
And a sound absorbing member 4 is provided above the filter chamber 3 between an inner frame 5a and a cylindrical outer frame 5b in which a ventilation plate such as punching metal is formed in a cylindrical shape.
A fan chamber 5 having a larger inner diameter than the inner top of the filter 2 is provided, and the inner top of the filter 2 has an inner diameter on the suction side inside the fan chamber 5, and the inner diameter of the fan chamber 5 becomes from this inner diameter. An indoor wall 6 having an inclined surface 6a inclined toward the frame 5a is provided, and a plurality of blades 7a having a shape substantially conforming to the inclined surface 6a of the indoor wall 6 are provided on a blade boss 7b having a large diameter on the base side to cause an axial flow. The fan 7 is formed, and an axial fan 7 is attached to the motor 9 supported by the support legs 8 inside the fan chamber 5.
And the fan motor 10 is constructed.

A decorative grill 11 having a plurality of intake ports 11a formed around it is provided so as to cover the filter chamber and the electrical equipment chamber 1, and the decorative grill 11 is provided with an operating portion 12.
A makeup louver 13 is provided in the upper opening of the fan chamber 5,
The body 14 is configured.

In the above structure, when the fan motor 10 is operated, the axial fan 7 provided in the fan motor 10 is operated.
And the air on the suction side of the fan chamber 5 is sucked into the rotating axial fan 7, and a high pressure and high pressure air flow is generated in the fan chamber 5 between the blade boss 7b of the axial fan 7 and the guide wall 6. As a result, the inner surface side of the filter 2 becomes a negative pressure, and the contaminated air is sucked into the mountain-shaped surface of the filter 2 from the intake port 11a of the makeup grill 11,
The contaminated air is purified while passing through the inside, and the purified air is sucked into the fan chamber 5 by the axial fan 7 from the inner surface side of the filter 2, and the air including the noise generated by the axial fan 7 is the inner wall of the fan chamber 5. Flows along the ventilation plate of the inner frame 5a forming the. At this time, the sound wave of noise is sucked into and silenced by the sound absorbing material 4 provided in the inner frame 5a, and purified air is diffused from the makeup louver 13 provided in the upper opening of the fan chamber 5.

As described above, according to the air cleaner of the embodiment of the present invention, since the filter 2 is formed into an annular shape by bending the strip plate into a plurality of mountain shapes, the surface area becomes large due to the mountain-shaped uneven surface of the filter 2. As compared with the flat plate-shaped one, a predetermined filtration area can be obtained even with a small-diameter annular shape, and the main body 14 that houses the filter 2 can be downsized.

Further, an axial fan having a guide wall 6 formed so as to be inclined toward the fan chamber 5 and a blade 7a provided on a blade boss 7b having a large diameter at the base side is provided between the guide wall 6 and the guide wall 6. Since 7 is provided, the power of the fan motor 10 is increased and the purification performance of the air purified through the filter 2 is improved.

Further, since the inner frame 5a of the fan chamber 5 is formed of a ventilation plate and the sound absorbing material 4 is provided inside, the noise generated by the fan motor 10 is absorbed and the noise is reduced.

In the embodiment, the filter is formed by bending the band plate into a plurality of chevron shapes, but the same operation and effect can be obtained by integrally forming a filter having a chevron-shaped concavo-convex shape. Needless to say, it brings

[0023]

As is apparent from the above embodiments, according to the present invention, a filter chamber for accommodating a filter formed by bending a strip into a plurality of mountain shapes and forming an annular shape is provided above the filter chamber. It has a fan chamber in which a fan motor is provided in the inner cylindrical shape which is provided, and since the fan motor is configured to suck and purify air from the outer surface to the inner surface of the filter, the filtering area of the filter becomes large, An air purifier that can be formed in a small size can be provided.

Further, a fan chamber having an inner diameter larger than that of the inner top of the filter, a guide wall formed with the inner top of the filter as the inner diameter and inclined from this inner diameter toward the inner diameter of the fan chamber, Since the axial fan provided with a plurality of blades having a shape substantially along the inclined surface of the guide wall on the blade boss having a large diameter on the base side and the fan motor equipped with this axial fan are provided, the power of the fan motor is increased. Can improve the purification performance.

Further, since the sound absorbing material is provided on the inner wall of the fan chamber, the noise generated from the fan motor can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an air cleaner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a filter portion of the air purifier.

FIG. 3 is a sectional view of a conventional air cleaner.

[Explanation of symbols]

 2 Filter 3 Filter chamber 4 Sound absorbing material 5 Fan chamber 6 Guide wall 7 Axial fan 7a Blade 7b Blade boss 10 Fan motor

Claims (3)

[Claims] 1. A filter chamber containing a filter formed by bending a strip into a plurality of chevron shapes and having an annular shape, and a cylindrical fan chamber provided above the filter chamber and having a fan motor inside. An air purifier configured to suck and purify air from the outer surface to the inner surface of the filter by the fan motor. 2. A fan chamber having an inner diameter larger than that of the inner top of the filter, a guide wall formed with the inner top of the filter being the inner diameter, and being inclined toward the inner diameter of the fan chamber, The air according to claim 1, further comprising: an axial fan having a plurality of blades having a shape substantially along the inclined surface of the guide wall provided on a blade boss having a large diameter on the base side, and a fan motor having the axial fan attached. Cleaner. 3. The air purifier according to claim 1, wherein a sound absorbing material is provided on the inner wall of the fan chamber.